package com.itheima.Interceptor;

import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;
import org.springframework.stereotype.Component;
import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;


@Component
public class DemoInterceptor implements HandlerInterceptor {
    //目标资源方法执行前执行。 返回true：放行    返回false：不放行
    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        System.out.println("preHandle .... ");

        return true; //true表示放行
    }
    //目标资源方法执行后执行
    @Override
    public void postHandle(HttpServletRequest request,HttpServletResponse response,Object handler, ModelAndView modelAndView)throws Exception{
        System.out.println("postHandle。。。。");
    }
    //资源方法执行完成，视图渲染完成之后执行
    @Override
    public void afterCompletion(HttpServletRequest request,HttpServletResponse response,Object handler,Exception ex)throws Exception{
        System.out.println("afterCompletion。。。。");
    }


}
